323130440423 has 4 divisors (see below), whose sum is σ = 369291931920. Its totient is φ = 276968948928.

The previous prime is 323130440411. The next prime is 323130440431. The reversal of 323130440423 is 324044031323.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 323130440423 - 2¹² = 323130436327 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (323130448423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23080745738 + ... + 23080745751.

It is an arithmetic number, because the mean of its divisors is an integer number (92322982980).

Almost surely, 2^323130440423 is an apocalyptic number.

323130440423 is a deficient number, since it is larger than the sum of its proper divisors (46161491497).

323130440423 is an equidigital number, since it uses as much as digits as its factorization.

323130440423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46161491496.

The product of its (nonzero) digits is 20736, while the sum is 29.

Adding to 323130440423 its reverse (324044031323), we get a palindrome (647174471746).

The spelling of 323130440423 in words is "three hundred twenty-three billion, one hundred thirty million, four hundred forty thousand, four hundred twenty-three".